Costs and Benefits: The Numbers Behind Chip Tuning

Costs and Benefits Of Chip Tuning

When you’re considering engine chip tuning or remapping, it’s easy to run into conflicting and confusing information. It can be tough to track down concrete numbers for what it can and can’t do for your car. Believe it or not, there’s actually a good reason for that.

So Why the Ambiguity?

There are a couple reasons why chip tuning doesn’t always get the same results. The first is the variation of cars out there. For example, a 1997 Honda Civic has little in common with a 2007 Ford F-150 4×4. There’s also a large variety of environments where the cars are driven. Chip tuning for a steadily hot environment can give much more stable results than chip tuning for an environment that swings from cold and dry to hot and humid.

The other big reason is the chip tuners themselves. There’s a wide variety of ways to change your car computer’s software, everything from a cheap “plug and play” external chip module to having a professional remap the software or switch out the engine chip. As you can imagine, this produces a wide range of results.

By the Numbers

All of that being said, there are a few numbers that can be thrown out there. With upgrades like this, it’s a good idea to look at the upper ranges of what you can accomplish. Then you can adjust downwards depending on your budget or abilities.

Tuning for Performance:
Up to 30% more power and up to 25% more torque

To get these results, your best bet is to go to a professional. They’ll perform complete diagnostics and tuning with the car on a rolling road. Be prepared to answer questions about your driving habits, and be honest. A pro will tune the software to specifically give you the most power for those driving conditions, so the more accurate you are, the more power you’ll get.

Tuning for Efficiency:
Lower fuel consumption by up to 16%

This doesn’t necessarily mean sacrificing engine power. In fact, many software remaps can actually increase your power and lower your fuel consumption at the same time. Again, the key here is to have the chip tuned to specifically fit your car, your driving conditions, and to have consistent driving behavior.

The Costs of Chip Tuning

This is another area where it can be tough to track down numbers, but here are a few rough ranges:

Performance Chips: $300-$700

This is for a chip or module that you plug into the diagnostic ports yourself. Performance chips or modules are the cheaper option, and pretty easy to install. That being said, they’re also not going to give you the best results. That cheaper price tag might only give you a tiny fraction of what you could get.

Professional Chip Tuning or Remapping: $400-$900

This price is really an incredibly broad estimate, since every situation is different. The more precisely you want the engine tuned, the more time it’s going to take, which means the more it’s going to cost. This also varies depending on the car. Some cars are capable of a lot more fine-tuning than others, and a pro can help you get the most out of them.

Additional Costs:

Chip tuning changes how your engine runs, and you should be prepared for a change in how you use your car. A great example is fuel costs. Chip tuning focuses your engine to the point where you have to be a lot more choosy when it comes to the gas you use. This can lead to increased fuel costs. That being said, those increase costs could be easily offset by the increase fuel economy.

Ultimately, chip tuning is like any other car upgrade: The more you put into the improvements, the more you’ll get out of them.

Engine Chip Tuning and Your Warranty

Warranty On Engine Chip Tuning 

Engine chip tuning, or adding performance chips, can make a big difference in how the engine in your vehicle runs. However, if your vehicle is under warranty then you probably want to keep it that way, and no amount of improvements are worth having to shell out big money the next time anything goes wrong.
These tips can help you figure out what will happen to your warranty with engine chip tuning. This does not qualify as legal advice, and if you really want to be sure then you should consult a warranty attorney.

The Magnuson-Moss Warranty Act

The Magnuson-Moss Warranty Act is a federal law that was passed back in 1975 to protect consumers. The law specifically covers how warranties are treated by the consumer and the warrantor. There are a wide variety of protections and regulations that are part of it.

But what does this have to do with engine computer unit tuning? The protections of the Magnuson-Moss Warranty Act mean that a warranty cannot be declared invalid just because you install aftermarket modifications, and that includes performance chips. Since performance chips or engine tuning add-ons leave the original components intact, the warranty is still valid.

Exceptions to the Rule

That being said, there are notable exceptions. The biggest one is Engine Management Systems (EMS). When these are added to your car, they bypass the existing onboard computer. Since this completely changes the OEM systems, it will void you manufacturer’s warranty.

The other exception is when the tuning modification can be proven to have caused the damage. This is true for more than just engine chip tuning. Your warranty simply isn’t going to cover repairs if you installed a radiator that didn’t work and caused the engine to overheat. The same is true if you added a chip that overrode safety standards and made the engine break down.

A perfect example of this is a Technical Service Bulletin (TSB) issued by Ford a few years ago. A large number of F series pickups with 6.0 Powerstroke turbo diesel engines were coming in with blown head gaskets. Ford found that almost every single one of them had a power chip installed that boosted engine output and damaged the head gasket. As a result, this specific damage was no longer covered under warranty, and Ford had every legal right to deny the warranty claim.

Do Your Homework

The very best thing you can do before your modify your vehicle is to research all of the data that’s out there. Professional aftermarket mechanics can be an invaluable resource for this. They’ll keep track of the TSBs that are out there for your car. Even if they don’t know the information off the top of their head, they know where to look to find it.

They’ll be able to recommend the best tuning modifications to get more out of your vehicle without harming your warranty.

Engine Chip Tuning: Is it Legal?

Engine Chip Tuning Legalized Or Not

The right performance chip or engine control unit can change the software in your engine’s computer, giving you more horsepower or more efficiency. In theory, it’s your vehicle, so you can do whatever you want to it.

The Alliance of Automobile Manufacturers would like to change that. This group of 12 automobile manufacturers seeks to prohibit car owners from changing the software in their cars. But do they have legal grounds to make that claim?

The Digital Millennium Copyright Act

It all comes down to the Digital Millennium Copyright Act. Passed in 1998, the DMCA was designed to specifically deal with issues of copyright and intellectual property in the digital age. At the time, it dealt with music, movies, software, and other digital products.

The Alliance of Automobile Manufacturers is petitioning to have the software within the car’s computer covered under the DMCA. They claim that they have a copyright on the software. Like software companies, they’d like to limit the ability of the consumer to copy or modify the software. If the petition is approved, then it could prevent car owners from performing any modification that changes the software.

The Argument for Limiting ECU Tuning

At first glance this push against chip tuning might seem like it’s out of left field, but there is logic behind the Alliance’s case. Early engine computers might have only determined one thing, such as the fuel/air ratio in the fuel injector. Modern cars can have over 80 different computers or chips scattered around the vehicle. They can control everything from the engine to the anti-lock brake system to the steering to emissions.

When a car leaves the factory, the software is carefully set to very specific parameters. Some of these ensure that the car meets emission standards. Others ensure that the car meets safety standards, efficiency standards, and more. If someone changes these settings without knowing what they’re doing, the results can be damage the vehicle, and may even lead to accidents.

The Argument Against Limiting ECU Tuning

Opponents and car enthusiasts are aware that there are risks to any customization, but contend that these risks are actually very minor. To put things in perspective, they’ll point to classic cars. For example, a car from the 1950s will not be up to modern standards, no matter how well maintained it is. Even if adding performance chips to modern cars makes them slightly less safe, they’ll still be safer, cleaner, and in more compliance with standards than older cars.

But the biggest argument they have against limitations is the infringement of ownership rights. Placing remapping or other software modifications under the DMCA means that car owners only have a license to the software, rather than full ownership. This would mean that the car companies would own part of your car, and have a direct say in what you do with it. Opponents are also concerned about it being a slippery slope. For example, a different set of rims changes the parameters the software works with, and could then no longer be allowed.

Before you get any performance chip, chip tuning, engine remapping, or other software work done, it’s a good idea to check with a pro. They’ll be able to give you the most recent updates on the progression of the debate to help you make your decision.